Home / 216,162,872-324,195,683.76-99,466,289.28

Finding the Fourth Proportional to 216,162,872, 324,195,683.76 and 99,466,289.28

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Solution

The fourth proportional to 216,162,872, 324,195,683.76 and 99,466,289.28 is: 149,177,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,162,872 : 324,195,683.76 = 99,466,289.28 : x
  2. Step 2: Convert to fraction form
    216,162,872/324,195,683.76 = 99,466,289.28/x
  3. Step 3: Cross multiply
    216,162,872x = 324,195,683.76 × 99,466,289.28
  4. Step 4: Simplify right side
    216,162,872x = 32,246,541,664,199,556
  5. Step 5: Solve for x
    x = 32,246,541,664,199,556/216,162,872
  6. Step 6: Final answer
    x = 149,177,059.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.